Foundry-molder&#39;s draw-screw.



E. GRANT.

FOUNDRY MOLDBRS DRAW SCREW.

APPLICATION FILED APR.-29, 1908.

906,526. Patented Dec. 15, 1908.

716272668 j/we/zzar EDWARD GRANT, OF CHICAGO, ILLINOIS.

FOUNDRY-MOLDERS DRAW-SCREW.

Specification of Letters Patent.

Patented Dec. 15, 1908.

Application filed April 29, 1908. Serial No. 429,955.

T 0 all whom it may concern:

Be it known that I, EDWARD GRANT, a citizen of the United States,residing at 498 Leland avenue, Chicago, Illinois, have invented a newand useful Improvement in Foundry- Molders Draw-Screws, of which thefollowing is a specification.

The object of my invention is to produce a. handy, serviceable drawscrew for molders use in drawing patterns from the sand, and itsprincipal feature is its peculiar construction whereby the screw partmay be renewed or changed for ditl'erent size of screws, thus makingunnecessary several complete devices of this kind, which a niolder wasbefore required to have on hand and it saves cost of renewals ot thescrew points a a new screw can be put in, in a moments time instead oicutting a new thread on the old handle or stock or getting a new stockwhich as the. old practice.

Reference will be had to the accompanying drawings wherein: Figure 1 isa plan view of the device with the latch closed. vFig. 2 is a side viewwith the latch open. Fig. is a cross-section on line 3- -3 of Fig. 1.

In the drawing indicates an ordinary handle or stock made of anysuitable metal and provided with a hand ring B for use in pulling thepattern.

it the lower end of the stock there is an aperture 0 in which there isseated a screw 1) here shown of a style like an ordinary flat head woodscrew. The aperture (7 opens into a side cavity E ot the handle whichcavityE is closed at the back side I \Vhich side F is used as a hannneror jarrer by the molder in his work. In the cavity I) there is located alatch or blade G, hinged on a pin H in a slot I at end of cavity I) andthe lower end K of blade or latch G is slightly beveled to permit itsrevolving into the slot J of the screw head of screw D which it locks inplace when the blade or latch G is shut into the cavity E as is shown byFig. 1. Thus the screw D is secured firmly with the stock and mayreadily be removed by jarring the latch into position of Fig. 2, whenthe screw may be removed through the cavity.

That I claim is:

1. A draw screw of the class described composed of a handle with acavity in the side of the body thereof and an aperture in the end of thecavity adapted to receive and furnish a seat for a screw and a latchlocking the screw both for end thrust and against revolving said latchpivoted in the body of the handle adapted to be revolved into and out ofengagement with the screw; said cavily in the handle open at one sideonly of the handle whereby the opposite side may be used for a hammer orjarrcr as described, and the action of hammering will tighten instead ofloosen the latch.

2. In a device olf' the'class described, a handle provided with a ringin one end, an aperture in the other end extending lengthwise ot thehandle, a cavity in the side of the handle connecting to the aperturesaid cavity larger than the aperture whereby a screw may be insertedhead and all into the cavity and thereby enter the thread of the screwinto the aperture. a latch hinged within the cavity and adapted torevolve to lock and unlock the screw into the aperture.

3. A device of the class described composed of a handle provided with aring or an enlargement of the upper end giving a good hand hold, a seator aperture at the other end oi? the handle adapted to hold a screw inline with the handle and means for locking the screw into the apertureor seat with a bulbous enlargement or other part of the handle at ornear thescrew end adapted to be used as a hammer or jarrcr in use asdescribed.

i. In a device ol the class described. the combination with a handleprovided with a lateral recess between its ends and with a passageextending tron] said recess to one of said ends and adapted to permit ascrew inserted in the recess to be advanced longitudinally in saidpassage until its threaded portion projects therefrom and its headengages parts surrounding the passage, of a latch arranged to movelaterally into and out of the slot in the head of a screw so placed,substantially as set forth.

In witness whereof I hereunto sign my name on this 23rd day of April,1908 at Chicago, Illinois, in the presence of two subscribing witnesses.

EDIVARD GRANT.

\Vitnesses:

J OHN C. Hummer, JOHN GRANT.

